Filling replenishing mechanism for double shuttle looms



`May 2, 1933. A s CQWAN 1,906,544

FILLING REPLENISHING MECHANISM FOR DOUBLE SHUTTLE LOOMS Figed'Feb. lo, 193 5 sheets-sheet 1 nl?, ATTOR /vEY May 2, 1933. A, s, COWAN 1,906,544

FILLING REPLENISHING MECHANISM FOR DOUBLE SHUTTLE LooMs Filed Feb. l0, 1932 5 Sheets-Sheet 2 nge A. S. COWAN May 2, 1933.

FILLING REPLENISHING MECHANISM FOR DOUBLE SHUTTLE LOOMS Filed Feb. 10, 1952 5 Sheets-Sheet 5 May 2, 1933. A s COWAN 1,906,544

FILLING REPLENISHING MEGHANISM FOR DOUBLE SHUTTLE LooMs Filed Feb. 10, 1932 5 SheecS-Sheet 4 ATTORNEY My 2, 1.933.- A s, COWAN v 1,906,544

FILLING REPLENISHING MECHANISM FOR DOUBLE SHUTTLE LOOMS Filed Feb. 10, 1952 v 5 sheets-sheet 5 o 169v O 38 z5 o 15;: In; "8 80 81 Y o 83 168 36 180 JP3 8 'jeal-"f E 165 ATTORNEY Patented May 2, i933 i UNITED STATE-S PATENT 'oi-Fica 'ABTHUB S. COWAN, OF BOSTON, HASSAOHUSETTS, ASSIGNOR T0 BIGELOW-SANFORD CARPET CO., INC., OF THOMPSONVILLE, CONNECTICUT, A CORPORATION OF MASSA- CHUSETTS FILLING REPLENisHInG MECHANISM Fon DOUBLE SHUTTLE Looms 2 Application filed February 10, 1982. Serial No. 591,988.

' This invention relates to filling replenishing looms, and more particularly to filling replenishing looms weaving with two shuttles.

i ms weaving with two shuttles may be utilized for the production of various fabric constructions. Where two sheds are formed Y by the warp threads and the shuttles are picked, each through one of the sheds, two Ysuperpos'edwebs result, and when such super- 13 posed webs are united by pile forming threads a double pile fabric is produced which, when the two webs are cut apart by severing ,the'pile'y forming threads uniting them,'two rpile fabrics are formed. In tlie 1%- production of the described fabrics the shuttles are usually picked simultaneously each through its own shed. i In other instances where the loom 1s weav- 9.. ingwith two, shuttles picked through the 2 same shed alternately, a single fabric is formed.` In all these cases it is the usual practice to rovide, the two shuttles with substantially t e same amount of filling. Should the looinbe of the filling replenishing type, it has been the common practice to effect replenishment of each shuttle separately when the fillin in thatshuttle has become substantially ex austed. This has resulted in repeated operations of the replenishing mechanism, and when the loom is of the type that susnds or slows4 up the loom operation during replenishment, much loss of time and product result.

scribed as embodied in a loom for weaving double pile fabrics but it is to be understood that the invention is not limited in this respect and may be advantageously employed in connection with other types of looms weaving withtwo shuttles'.

; The novel features ofthe invention and ass'ociated controls and safety appliances will best be made clear from the following de- -lscription and accompanying drawingsof one good form thereof. 4

. In .the drawings Fig. 1 is a front perspective view of a double 5 pile fabric, loom containing the present invention, some of the parts being omitted for clearness of illustration;

The invention will be exploited and de- Fig. 2 is a side elevation at the replenishiing side of the loom, some ofthe details being shown in section or broken away, and the loom at rest;

Fig. 3 is a side elevation at the non-replen- 55- ishing side of the loom;

Fig. 4 is an enlarged sectional elevation showing portions of the lay, replenishing shuttle boxes, the two magazines or hoppers, and the shuttle carriers in their first position on call for replenishment of filling;

Fig. 5 is a sectionalside elevation of a protector mechanism and safety device;

Fig. 6 is a detached detail of the change shaft control;

Fig. 7 is an enlarged perspective view at the non-replenishing side of the loom, some of the parts being omitted and others shown broken away for clearness of illustration;

Fig. 8 is an enlarged detached side elevation ofcthe filling fork control; and

Fig. 9 is a detail in side elevation of details pertaining to the loom stopping and replenishing control.

The loom shown is of the double pile fabric type using two shuttles which may be simu taneously picked through two sheds for the production of two superposed webs which are united during the weaving operation by pile vforming warp threads, and the general. means for this purpose may be as usual;

The loom frame 1 may be of any suitable construction for support of the operating parts and such parts may be actuated from any suitable source of power. In the present instance the power driving means convsiste of an electric motor 2 supportedv at the 9 to actuate the crank shaft 10 when the A clutch members are engaged. The crank 1- shaft is connected to the lay swords 11, Fig. 3, bythe usual pitman 12 whereby the lay 13 may be given its beatup movements, as

- vention and are now well understood .in they 'are led to suitable cloth rolls.

art.

Extending transversely of the loom frame is the shipper shaft 14 to which is'securedthe shipper 15 shown in Fig. 3 in full lines in its running position, and extending downwardly from the shipper shaft is the arm 16 connected by the rod 17 to the clutch control member such as the slide 18 for actuating the arm 19 yand shaftL 6 to manipulate the clutch, the construction being such that when the shipper 15 is in its full line position, Fig. 3,

4the clutch members are engaged and the loom in running position. l ,Y

The shedding mechanism for manipulating the warp threads a in the formation of -the two sheds may be as usual, but as here'- in shown consists of a series 'of harness frames 20 for controlling the warp threads in their rising and falling movements, as usual. The lay 13 carries a reed 21 through which the warp threads pass on their way t0 the fell of the cloth, and the two sheds in connection with the filling threads, as usual, serve to produce the two superposed webs While the pile forming warps manipulated by a suitable shedding mechanism pass back and forth between the two webs for the production of a double pile fabric, as indicated in Fig. 1. As the double pile fabric is fed forward thepile forming threads are cut and as shown the cutting mechanism may consist of a carriage 22 having a knife and operated transversely back and forth by suitable actuating means, now well known in the art, with the result that thetwo superposed webs are cut apart and produce the two separate pile fabrics 23 and 24 which are led about suitable spike or sand rolls 25 and 26, and driven synchronously through the gears 27 to take up the two pile fabrics which The mechanism thus far described is now well known land needs no further elucidation.

The lay 13 is provided with the shuttle replenishing boxes at one side of the loom and the non-replenishing boxes at the opposite side and during the weaving operation the picker sticks 28 act upon both shuttles to pick each through its respective shed, and inasmuch as the upper shuttle of the two travels for the most part upon the lower plane of the upper lshed of warp threads a short shuttle guide 29'extends from the inner end of the upper shuttle box to direct the shuttle, as indicated in Fig. 1. Itmay be desirable in some cases'to provide an upper guide for the upper shuttle to insure its accurate picking movement and this is provided in the present instance by the shoes or guides 30, Fig. 1.

The loom illustrated is of the shuttle changing type and an important feature of the present invention resides in making a double shuttle change when either shuttle indicates substantial exhaustion of filling.

Rising from the lower portion of the loom frame at the replenishing side is a hopper support 31 for sustaining the two full shuttle supply hoppers or magazines. In the present instance the hopper support 31 is provided with the supporting lugs 32 which may be adjustably secured to the hopper support 31 by the bolts 33. Each of the lugs 32 has extending therefrom a supporting arm 34 which is engaged with suitable projections 35 extending from the hoppers or magazines 36, Figs. 1 and 2, and in order that the hoppers may be heldj in fixed position they are connected to the supporting arms adjustably by suitable clamps or set screws 37, Fig. 2.

Each ofthe hoppers 36 will ordinarily contain a series of shuttles 38 supplied with filling and ready to be transferred from the hoppers to the shuttle boxes on call for replenishment of filling.

In order that the shuttles in each of the hoppers may be retained therein each hopper is provided with a stop or abutment on which the lower shuttle rests during normal weaving operations. Such abutment or stop may consist of arms 39 pivotally mounted at 40 to the hopper wall and each having a downwardly extending tail portion 41 and a rearwardly extending lug 42 on which the lower shuttle ofthe series may normally rest, Fig. 2.

Since, in accordance with the present invention, two shuttles are to be simultaneously transferred from the hoppers to the shuttle boxes, the hoppers themselves are arranged in staggered relation, that is, one hopper is frontward of the other while the other is higher than the front one, as clearly illustrated in Figs. 2 and 4. This arrangement of the hoppers likewise enables the shuttle carriers, to be hereinafter described, to move in their respective different paths in transferring a shuttle from the hoppers to the two shuttle boxes which, as will be observed, are one above the other.

The two shuttle carriers for transferring a shuttle from each of the hoppers to the respective shuttle boxes consist of the arms 43 and 44 which are pivotally mounted at their lower ends at 45, Fig. 2, and each has a projecting cam engaging member 46, 47 which normally take the position indicated in Fig. 2 during normal weaving operations and when the loom is at rest.

The upper portion of each lof the carriers 43, 44'is provided with a shuttle supporting portion 48 on to which a shuttle from the hoppers will drop when the abutments 42 of the `hoppers are withdrawn.

;. .It may be desirable in some' instances1 to' obstruct the downward movement of the shut-4 tles above those whipli have been dropped until the abutments 42 can again assume their initial position. This condition is portrayed in Fig. 1 wherein it `,Will be noted that the pivotal" support of each abutment comprises a rock shaft normally under the influence of a spring 49, Fig. l, tending to move the abutment inwardly to its normal position, and pivotally mounted ,upon thefhoppers at is a stop finger .51 which is connected to a crank arm on the shaft 40 by a pin .52, such that. as the abutment swings outwardly into the position of Fig. 4 the stop fingers will be turned inwardly to hold the stacks of shuttles from dropping downwardly in'the hoppers.

. In order that shuttles may be transferred simultaneously from both hoppers to the two shuttle boxes, the two running shuttles must be. first discharged from the boxes, as indicated in Fig.. 4. Risingfrom the lay 13 is a bracket or arm 53, of which there may be two, separated longitudinally of the lay a suitable distance apart, and pivotally mounted at the upper end portion of the bracket -53 is a rock shaft 54 on which is mounted the front box plate actuating arms 55. The front box plate 56 is pivotally connected at its upper end at 57 to the arms 55 and such pivotal connection may-take the form of a rock shaft, as clea-rly indicated in Fig. 1, the

- construction being such that if the arms are moved upwardly into the position indicated in Fig. 4 the front box plate will likewise be lifted to free the front of the shuttle boxes for the ejection of the running shuttles.

The front box plate 56 has an upwardly extending arm 58 to which is connected a'link 59, its opposite end being connected at 60 to a fixed lug 61, the construction being such that as the front box plate is turned upward' -ly to permit the ejection of the running shuttles it will rise in a substantially vertical 05 the present invention provides` duplicate kickers 62 which-' are .carried by .one or more arms 63. pivotallymountd at. ;64-.and having an upwardly extending..ne1`nber.-f.65, '.Fig.A 4;

The endl .portion-.of lthe .arm vl65v isa-provided with .a 1 kicker .operating member-6 .which may. preferably-takethe form of .an .adjusting screw, Fig.ae2, the lower-endfof which will be struck .by .thfegupper .portiom .67 .oi the freut boxplate. thalatterisswlngpwardlyfil'i its parallel. link .movement and approaches its upward limits .to expose the .frontfof .the shuts tlc boxes for theejectionfof therunning shut. tles.' The running; shuttles.' having vbeen ejected under v the conditions `:shown in Fig`..4;-',

the kickers are Lcaused .to be-with'draw-n from the shuttleboxes, by aa withdrawing member 68, Fig. 4, the end portion 69of which engages frontwardly of. the army 63- .and- .moves it to withdraw :the #kickers .on 'thev initial .movef'l ment of the front `shuttle box wall to its `initial position. .1. As willibe. apparent fromFig. i4, .the front box'plate 56 is givemanI-amount-of upwardmovem'ent somewhat cxcessofv that r .uiredf to uncover or-.free;the, .shnttlesftoffbe' ejected and such excess of movement 1is utilized to operate the Tkickersyso-that;as-Ithegfront boi plate approaches the upper limit of its movement, thev upper. portion .67 -of the `front.v box plate will-strike; the' .kicker :operating member 66, Vthe lower .end of lwhichis *normally some distanceabve the upperr po1ftion 67l= of the front box plate, and socause-the shuttles to be ej ected'. l Before. thel incoming fshuttles aretransferred to the shuttle boxes, the l'front box plate. 56-1=starts":do'wnward .towards its initial position,I .whereupon the withdrawing member 68: withdraws-'f the; kickers: from l the shuttleboxes duringthe--rst part ofthe front box plate movement andbefore thefront box plate is suiiiciently flowered to. .obstruotf'the entrance .oi theresh:I shuttles 'to "the shuttleV boxes. The. kickers arethuse-removed fromthe.shuttle"boxes',rthe fresh shuttlssaretrans ferred to the. shuttle.boxes',and thenA the-front box plate com-pletesfits movementtoinitial position.; i f Extending from- `the shaft 5.4 lcarried by the brackets 53 is an arm 70 connected :by a link 7l to. the. lower. arm 72. supportednby the rock vshaft atdthelower art ,ofthe brackets 53and ,connected wi l' l.the 7 2 is a Spring' 7.4.iilichnarniallyatto-nore the front.A wall 'of the" ',shhu't'tle box .back to as initial pasaiqn after-twinebn..dis; .x l. :5L-...NIU l VI." y; I Y. juli-..1 ',In 'the constructionfthsffaif'de dii-t. wlu be @paient that anon the "actuatii f thev shuttle repl'enisfiin'gl mechanism; liri'f before described, the' twdrun'ni'n "shuttles will be replaced' shuttles" 'supp filling, and 'inasmuchasi the* ishown of the general type wherein-weavingopera tions are s'uspendeddurihga chan -cof'shit-i tles it becomes appropriate at 'this ti'me to 'point out how the indication'of filling exhaustion in either of the shuttles brings about a change in both shuttles.

Opposite the shuttle boxes on the non-replenishing side of the loom is a feeler mechanism which serves to detect the condition of the filling in each shuttle while in the non-replenishing boxes, and while suitable form of feeler mechanism may be employed to detect substantial exhaustion of filling in either shuttle, the feeler mechanism shown consists of two pair of feeler members 75, one pair cooperatin with each shuttle. The feeler mechanism s own is ofthe electric type and when the'filling in either shuttle has reached a predetermined degree of exhaustion the metal collars 76 on the cooperating feeler members will engage a metal platey struction being `such that during normaly Weaving operations the end portion 86` of the actuator will be held in a raised position out of the path of the shouldered portion 87 of the cam follower 88. When, however, the solenoid is energized or excited ,by the closed circuit through ,eithery pairv of feelers the rod 80 will be drawn to the right, Flgs. 1 and 7, thereby withdrawing the end of ,the slide 82 from` under the arm 84 and permitting ,the end portion 86 of the actuator 85 to drop intothepath of the shouldered portion 87 of the cam follower 88.

The actuator 85 is pivotally connected at 89 on a bell crank lever 90 pivotally fmounted upon a support 91. The arm y91 ofthe bell crank lever carries a clamp 92, downwardly from which extends the replenishing control rod 93, the lower end portion of which is connected at 94, Fig. 3, to a lever 95 pivotally supported at 96 on the loom frame.

Mounted for continuous movement on the shaft 5, Fig. 3, is the beveled gear 97/.which meshes with a beveled gear 98 secured to the upper end portion of the transmitting shaft 99, on the lower end of which is a worm 100 which is in continual connection with the worm wheel 101, Fig. 6. The worm wheel 101 is fixed to a sleeve 102 loosely mounted upon the change shaft 103, the construction being such that While the worm wheel and sleeve 102 may rotate continuously the shaft 103 remains idle during normal weaving operations.

Keyed to the shaft 103 is a disk member 104 and mounted on the sleeve 102 is an adjacent disk member 105 which is provided with a series of openings or holes 106, Fig. 3, any one of which is adapted to be engaged at times by a pin 107 mounted upon the radial arm 108 which, as usual, is normally held in position with the pin 107 withdrawn from a notch 106 in the disk 105 by a controller 109, Fig. 6. So long as the controller 109 is prevented from movement about its pivotal support 110 it bears upon the radial arm 108 and holds the pin disengaged from the notch in the disk 105.

Pivotally mounted at 111 is an angular latch member 112, Figs. 3 and 6, the upper end portion of which normally overlies the arm 113 on the controller 109, with the result that so long as the parts are in the position indicated in Fig. 6 the radial arm 108 holds the locking pin 107 from engagement with a notch in the disk 105.

Connected to the lever 95 previously described, Fig. 3, is a link member 114 normally under the influence of a spring 115 and connected to the arm 116 of the latch 112, with the result that during normal weaving operations the parts maintain the position indicated in Figs. 3 and 6, but on call for replenishment of filling through the actuator 85, as decribed, the lever 95 throws the upper end of the latch 112 from engagement with the controller 109 whereupon the shaft 103 becomes locked for rotative movement with the sleeve 102. The movement of the lever 95 is sudden and jil'st sufficient to free the latch 109 and permit the end of the radial arm 108 to pass beyond the end of the lower end of the latch, whereupon the parts again assume their locked position, as indicated in Figs. 3 and 6, so that on a single rotation of the change shaft 103 the locking pin 107 is again detached from the engaged notch and the change shaft comes to rest.

Mounted on the change shaft 103 are the controlling cams, one 117, for raising the front wall of the shuttle boxes and the other two, 118 and 119, for controlling the movements of the shuttle carriers 43 and 44, Fig. 2.

Mounted on shaft 73 carried by the lay ispan arm 120, Figs. 2 and 4, the end portion of whichvis connected to ar downwardly extending rod 121 which at its lower end is jointed to a lever 122 pivotally supported at 123 on the loom frame, and cooperating with the `lever 122 is the cam 117, previously mentioned, which acts upon a roll 124 carried by the lever 122, the effect being that on starting the change shaft 103, as hereinbefore described, the cam 117 will serve through the described connections to raise the front wall of the shuttle boxes from the position indicated in Fig. 2 to that shown in Fig. 4, whereupon the running shuttles are discharged from their boxes, as already described.

As previously mentioned, the shuttle carriers 43, 44 are each given a slight frontward movement at their upper ends to permit a shuttle from each'of the hoppers or magazines to pass into control of the carriers, a condition that is brought about by a slight hump 125, 126 formed as part of the shuttle carrier operating cams 118, 119, Fig. 2. As the change shaft continues to rotate after having given the frontward movement to the shuttle carriers the rolls on the ends of the arms 46, and 47 of the carriers pass along the contour of the cam, or rather the cams pass under the rolls permitting the latter to ride into the lower portion of the cams, Whereupon the springs 127 and 128, which are connected to the shuttle carriers 43 and 44, move the latter backwardly in their respective different paths to substitute a full shuttle in each of the shuttle boxes to replace the previously ejected shuttles, as indicated in Fig. 4, whereupon the rising portions of the two cams 118, 119 return the carriers to their frontward position, as indicated in Fig. 2 and at this time the double shuttle replenishment has been completed.

The double pile fabric loom, shown in the drawings, is of the type where the loom operation is interrupted or the loom brought to rest during the replenishing cycle of the loom and since loom stoppage must be effected at or aboutl the time that replenishment is called the present invention provides means for stopping the loom on call for replenishment of filling, as follows,yhaving reference more particularly to Figs. 3, 7 and 9.

The bell crank lever 90, to which the actuator 85 is pivoted, has a pin 129 which bears upon the lower arm 130, Fig. 9, of the lever 131 pivotally supported on the same pivotal mounting as is the bell crank lever 90, Fig. 9,

and connected to the lower arm 130 of the lever is a link 132, the outer end portion ofu which is provided with a slot 133, which is engaged by a pin 134 extending from an arm 135 secured to the shipper shaft 14, the pin 134 normally resting at the end of the slot, as indicated in Fig. 9, the result being that when the actuator 85 is moved frontwardly on call for replenishment of filling the pin 129 will turn,the lever arm 130 to the right, Fig. 9, thereby turning the shipper shaft and the shipper 15 to loom stopping position. The slot 133 in the link 132 permits movement of the shipper to its stopping position by hand if desired.

On call for re lenishment lof filling and from the mechanism hereinbefore described ithwill be apparent that the loom will be stopped and the change shaft 103 be turned for one complete revolution, thereby effecting replenishment in both shuttle boxes, and prior to the completion of the single revolution of the change shaft the loom is to be automatically restarted.

Mounted for rocking movement about'the centre 123' is the starting arm 136, Figs. 2 and 5, to which is rigidly secured for movement therewith an arm 137, the end portion of which is in the path of movement of a trip cam 138 which, just prior to completion of a single revolution of the change shaft 103 rides under the arm 137 and moves the starting arm 136 to the left, Fig. 2.

Passing loosely through the upper end of the starting arm 136 is the starting rod 139 having a slotted member 140 which is provided with a locking notch 141 normally engaged by a pin 142 extending from the arm 143 mounted for limited rocking movement on the shipper shaft 14, Fig. 5. The arm 143 is connected to the lower portion of the shipf per lever 15 by a pin and slot connection 144 and a spring 145 extends between the auxiliary handle 146 and the arm 143 thereby permitting a limited yielding movement as a factor of safety.

A spring 147 surrounds the starting rod 139 between a fixed collar 148 and a loose collar 149"against which bears the starting arm Y 136, with the result that when the starting arm 136 is moved to the left, Fig. 2, it acts upon the nut or abutment 150 to draw the starting rod 139 to the left and perforce move the shipper 15 to its loom operating position as the cam 138 passes under the arm 137. When the cam has finally passed the arm 137 into the normal loom running position, as indicated by dotted lines in Fig. 2, the starting arm 136 will be moved about its pivotal support in the opposite direction or to the right, Fig. 2, under the impulse of the spring 127 which connects it with the shuttle carrier 43. At this time the arm 136 will slightly compress the spring 147 and the end of the starting rod 139 will project beyond the end of the starting arm, as indicated by dotted lines, Fig. 5, and the loom will then be started.

It may happen at times that one of the shuttles will fail to be properly positioned in its box and if filling replenishment were called at this time a smash would occur, and so the present invention provides a safety device or protector mechanism, so that after the loom has been stop ed by a mis-positioned shuttle it cannot be again automatically Started-r' `i Mounted upon suitable ways on the machine frame is a sliding frog 151 whichqmay be actuated or pushed frontwardly by either of the dagger fingers 152 and 1,53, Fig. 5, to thereby effect loom stoppage.

In the spresent instance the frog 151 has a stop finger 154 extending frontwardly therefrom and normally bearing upon the lower end portion of the shipper 15 or its associated arm 143 while the loom is running. The frog is `held retracted by a spring 155 and when moved frontwardly by one of the daggers 152 and 153 the end of the frog abuts against a rubber bumper 156 to check the tending upwardly therefrom are fingers'l? land 158, which bear against the usual binders of the shuttles boxes, with the result that should a shuttle not be properly boxed the associated dagger will drop and engage one of the shoulders carried by the frog 151 and cause the frog to slide frontwardly and thereby effect loom stoppage.

Pivotally mounted on the loom frame at 159 is an arm 160 having a pin 161 which bears upon the lower side of the starting rod 139. 'llhe upper end of the lever 160 is connected at 162 to a link 163 pivotally jointed to the frog 151 at 164, the result Vbeing that when the frog is moved frontwardly by reason of an improperly boxed shuttle it will first cause the shipper to move to its loom stopping position and will simultaneously turn the lever 160 to thereby lift the starting rod and detach the notch 141 from the pin 142 of the starting lever, with the result that even'should filling replenishment have been called the starting arm 136 cannot move the shipper to its loom running position.

Upon failure of filling to be laid inl the shed by either shuttle, the present invention proposes that the loom be stopped for correction of the filling'fault and that the replenishing mechanism be rendered inoperative so that even should replenishment be called when the filling fails the loom will be stopped without initiation of the replenishing operation and as one form of means to carry out the intended purpose of the invention there is a vfillingfork mechanism at the non-replen ishing side of the loom which detects presence or absence of filling from either shuttle on de- Qtecting beats.

Mounted in close proximity to the cam follower 88 is a filling fork carrier 165, Fig. 8, comprising an arm pivotally supported at its lower end at 166 Vand secured to the filling fork carrier are the stands 167 and 168, each of which has pivotally mounted thereon a filling fork 169 and 170, the frontwardly extending ends of which are provided with hooks 171 and 172.

Mounted on the cam Jfollower 88, Fig. 8, are the `follower hooks 173, 174, pivotally connected to the camfollower at 175 and 176. 'llhe forward end portions of the hook members 173 and 174 carry a lifter 177 which is provided with a frontwardly extending portion 178 normally located slightly below the end 86 of the actuator 85. Should either filling fork detect absence of filling laid in the shed its front hook portion will engage the associated hook member on thel cam follower, as indicated by dotted lines on the lower filling fork, Fig. 8, with the result that the lifter 177 will be raised, and its projecting portion 178 will lift the rear end portion of the actuator 85 above *the path of the shouldered portion 87 of the cam follower and perforce thereby lift the actuator so that i it cannot be moved by the cam follower even should filling replenishment be called at this time.

To effect loom stoppage under the above conditions the filling fork carrier 165 hasl connected to its upper end at 179 a rod 180 which extends frontwardly, Figs. 8 and 9, and connects with the upper end of the lever arm 131, with the result that on frontward movement of the cam follower the link 132 which, as before described as connected with the shipper 15, Fig. 9, will throw the shipper from its running to its stopping position.

The double shuttle change, as shown in Fig. 1, is about completing the transfer of -a shuttle from each of the shuttle magazines or hoppersto the two shuttle boxes, and it will be noted that the two shuttle carriers 43, 44 are in substantially their back position with the shuttle supporting portions 48 extending into each of the shuttle boxes and the front wall of both shuttle boxes, which is formed in onepiece, is in its raised or substantially raised position.

i As the shuttle carriers 43 and 44 are withdrawn from the shuttle boxes, the front wall of the shuttle boxes which is formed as a single member, should obstruct (the withdrawal of the newly supplied shuttles from the shuttle boxes and as a convenient means to this end the frontk wall 56 is provided with openings 181 which permit the front wall of the shuttle boxes to descend to substantially its lower position as the shuttle carriers 43 and 44 are withdrawn.

The loom frame has mounted thereon a shuttle receiver 182, Figs. 1 and 2, for the reception of the discarded shuttles as they are ejected from the shuttle boxes and in order to guide the shuttles downwardly into the receiver it is appropriate that a guide or apron 183 be employed.

From the construction described as one v good form or embodiment of the invention it will be apparent that upon detection of substantial exhaustion in either shuttle by the feeler lnechanism both ofthe running shuttles will be replenished, the old or running shuttlesA will be ejected from the two shuttle boxes and two shuttles supplied with filling-'l will be transferred to the two shuttle boxes.

What is claimed'is 1. In a filling replenishing loom of the 5s i of the filling in both shuttles, a shuttlechang- 2. In a shuttle changing loom weaving with two shuttles, the combination of the lay having two shuttle boxes at the same side of the loom, detector mechanism for detecting the condition of the filling in both shuttles, and shuttle changing mechanism rendered operative on detection of substantial exhaustion of filling in either shuttle to change both ,shuttles at the same time.

3. In a shuttle changing loom weaving with two shuttles, the combination of the lay ative on detection of substantial exhaustion of filling in either shuttle to change both shuttles at the same time.

4. In a shuttle changing loom weaving with two shuttles, the combination of the lay, two shuttle boxes at each side of the loom, shuttle changing mechanism at one side of the loom, detector mechanism for detecting the condition of the filling in both shuttles, vand means rendered effective on detection of substantial filling exhaustion in either shuttle for causing the shuttle changing mechanism to become operative to change both shuttles.

5. In a filling replenishing loom weaving with two shuttles, the combination of the lay and shuttle boxes, detector mechanism for detecting the condition of the filling in the shuttles on detecting-beats, and filling replenishing mechanism rendered operative on detection of substantial exhaustion of filling in either shuttlefor simultaneously replenishing thefilling in both boxes as a result of such single detection.

6. In a shuttle changing loom weaving with two shuttles, the combination of the i J lay provided with two shuttle boxes at'the same side ofthe loom, shuttle changing mechanism for changing the shuttles in both boxes on one operation of Jthe shuttle changing r nechanism, and means for operating the shuttle changing mechanism, to change bothfshuttles when either of them indicates substantial exhaustion of filling.- f

7. In a shuttle changing mechanism for looms, the combination ofthe lay providedwith two shuttle boxes at one side of the loom for weaving with two shuttles filling detecting mechanism for detecting the conditlon ing mechanism for each shuttle box, and means rendered operative o n detection `of' substantial exhaustion of filling in either shuttle for operating both shuttle changing mechanisms to eject simultaneously the two running shuttles from their'respective shutttle boxes and insert a full shuttle for each at the same time. f v

8. In afshuttle changing loom, the conbination of the lay provided with two shuttle boxes at the same side of the loom for weaving with two shuttles, shedding mechanism for dividin the warp threads into two sheds,l

one for eac shuttle, shuttle changing mechanism for changing the two shuttles together, and means rendered operative on substantial exhaustion of filling vin either shuttle for 'ejecting together the two running shuttles and inserting two full shuttles.

9. In a shuttle changing loom, the combination'of the lay having two shuttle boxes at each side of the loom for weaving with two shuttles, shedding mechanism for dividing the warp threads into two sheds, one for each shuttle, filling feeler mechanism for detecting the condition of the filling in both shuttles, Y shuttle changing mechanism for changing the shuttles in both boxes on a single operationv of the shuttle changing mechanism, and means rendered operative on detection of substantial exhaustion of filling in either shuttle for causing the shuttle changing'l mechanism to change the shuttles in both boxes.

10. In a shuttle changing loom,- the combination of the lay, two shuttle kboxes at each side of the loom, two shuttle magazines at the replenishing side of the loom, shuttle carriers for conveying shuttles from the magazines to the two shuttle boxes, and means for operating the two shuttle carriers to transfer shuttles from the two magazines to the two shuttle boxes at the same time.

11. In a shuttle changing loom, the combination of the lay, two shuttle boxes at each side of the loom, two shuttle magazines at the replenishing side of the loom, mounted at different heights, shuttle carriers for conveyin shuttles from the magazines to the two s uttle boxes, and means for operating the two shuttle carriers to transfer shuttles f rom'the two magazines to the two shuttle boxes at the same time.

l2. In a shuttle changing loom, the combination of the lay, two shuttle boxes at each side of the loom, two shuttle magazines at the ritelenishing sideof the loom mounted bination of the lay having two shuttle boxes at one side of the loom, two shuttle magazines for loaded shuttles at the same side of the loom and having their shuttle discharge openings at different heights, two shuttle carriers mounted for movement along different paths to transfer shuttles from the magazines to the two shuttle boxes and means for simultaneously operating bothcarriers.

shedding mechanism, filling 14. In a shuttle changing loom, the combination of the lay having two shuttle boxes at one side of the loom, two shuttle magazines for loaded shuttles at the same side of the loom, and having their shuttle discharge openings at different heights, two shuttle carriers mounted for swinging movementmeans controlled by each feeler for operat-` ing the shuttle changing mechanism to transfer a shuttle to each of the two shuttle boxes when either feeler detects substantial exhaustion of filling in either shuttle.

16. In a filling replenishing loom weaving with two shuttles, the combination of the lay having two replenishing shuttle boxes, replenishing mechanism for each shuttle, filling feelers for detecting the condition of the filling in the two shuttles, and mechanism controlled by the filling feelers to replenish both shuttles simultaneously when the filling feelers detect substantial exhaustion of filling in either shuttle.

17.- In a shuttle changing loom, the combination of the lay provided with two shuttle boxes at one end, shuttle changing mechanism for simultaneously changing' the shuttles in the two boxes, fillin feeler mechanism for setting the shuttle elfi tion of the replenishing mechanism, filling fork mechanism for detecting failure of filling to be laid in the shed by either shuttle, and auxiliary means controlled by the filling fork mechanism for preventing operation of the replenishing mechanism when filling fails to be laid by either shuttle.

19. In a filling replenishing loom weaving with two shuttles, the combination lof the lay'having two replenishing shuttles boxes,

anging mechanism in operation to change both .shuttles replenishing mechanism lfor replenishing both shuttle boxes at the same time, filling feeler mechanism for initiating the operation of the replenishing mechanism when the filling in either shuttle becomes substantially exhausted, filling fork mechanism for detecting failure of filling to be laid in the shed by either shuttle and thereupon eecting loom stoppage, and auxiliary means controlled by the filling fork mechanism for preventing operation of the replenishing mechanism when filling fails to belaid by either shuttle.

20. In a filling replenishing loom weaving with two shuttles, the combination of the lay having-two replenishing shuttle boxes at one side of the loom, for replenishing the filling in both boxes on substantial exhaustion of filling in either shuttle, power means for restarting the loom on completion of filling replenishment in both boxes, and a safety mechanism for rendering the power means ineHectual to start the loom should either shuttle be improperly boxed. y

21. In a filling replenishing loom weaving with two shuttles, the combination of a shipper, the lay having two replenishing shuttle boxes at one side of the loom, mechanism for stopping the loom and replenishing the filling in both boxes at the same time upon detection of substantial exhaustion of filling in either shuttle, power means including a starting rod detachably connected to the shipper for starting the loom, and means for disengaging the starting rod and shipper to prevent starting the loom by power should either shuttle be improperly boxed.

22. In a shuttle changing loom weaving with two shuttles, the combination of the lay having two replenishing shuttle boxes at the replenishing side of the loom, a single front wall for both replenishing boxes, two links pivotally connected to the single wall of the shuttle oxes,'and means for operating said link to prevent the front wall of the shuttle boxes from swinging outwardly therefrom to any substantial extent as the wall is moved from and to its operative position.

In testimony whereof, I have signed my name to this specification.

ARTHUR S. COWAN. 

